And there are grades to this. "A few hundred" may be anything, really. "Three hundred" may be a misspoken two or four, but probably not one or five. 35 may be more specific than 30, being a case of "rounding to the closest five" against "rounding to the closest ten" - yet "275 years" is probably less specific than "270 years", as the former really denotes nine quarters of a century and thus is only accurate to the degree "quarter of a century" is, while 270 should ideally mean something between 266 and 274.
Then there are cultural differences. "Forty nights and days" is really just saying "a lot of nights and days", in a nondecimal system where "hundred" did not hold any special position as the marker for "a lot" yet, but the literally more "handy" (and footy!) forty did.
The challenge today is telling the "it happened a century ago" references in the Trek timeline from the "it happened in 2215 specifically" ones... Trek does have its share of the latter. So, quick, which category does the "sublight propulsion got better in 2018" one belong to...?
Timo Saloniemi